Feature:1. Motion Sensor: This LED headlamp features motion sensor, you can easily control the switch by waving your hand, easy and convenient.2. Adjustable Headband: This LED headlamp adopts adjustable headband that supports angle adjustment to avoid shaking and sliding when using.3. Waterproof Design: This LED headlamp adopts waterproof design, which is not afraid of rain and winds. Suitable for different environment.4. USB Charging: This LED headlamp possesses 800mAh rechargeable battery that can be charged by included micro USB cable.5. Wide Application: This portable LED headlamp is widely used in adventure, night run, camping, maintenance, hiking and other activities.How to Use:1. Control the light switch and modes through the button on the product2. USB charging, can be matched with mobile phone charging head, power bank, and notebook computer for chargingSpecification:Item Type: LED HeadlampMaterial: ABSVoltage: 5VBattery: Inbuilt Lithium Polymer Battery, Capacity of 800mAh (Battery Included)Product Size: Approx. 6 x 3 x 3.5cm / 2.36 x 1.18 x 1.38in ( Manual Measurement, Slight Error May Exist )Weight: Approx. 75g / 2.65oz Package List:1 xLED Headlamp (Battery Included)1 x USB Cable